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SbMutex.h
1 #ifndef COIN_SBMUTEX_H
2 #define COIN_SBMUTEX_H
3 
4 /**************************************************************************\
5  *
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7  * Copyright (C) by Kongsberg Oil & Gas Technologies.
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25 \**************************************************************************/
26 
27 #include <Inventor/SbBasic.h>
28 #include <Inventor/C/threads/mutex.h>
29 
30 class SbMutex {
31 public:
32  SbMutex(void) { this->mutex = cc_mutex_construct(); }
33  ~SbMutex() { cc_mutex_destruct(this->mutex); }
34 
35  int lock(void) {
36  cc_mutex_lock(this->mutex);
37  /* Useless return, here just for compatibility with TGS'
38  SbThreadMutex API: */
39  return 0;
40  }
41 
42  SbBool tryLock(void) {
43  return cc_mutex_try_lock(this->mutex) == CC_OK;
44  }
45 
46  int unlock(void) {
47  cc_mutex_unlock(this->mutex);
48  /* Useless return, here just for compatibility with TGS'
49  SbThreadMutex API: */
50  return 0;
51  }
52 
53 private:
54  // FIXME: we need access to C mutex structur. Should we use friend,
55  // or should we add a new public method to get to this structure?
56  // pederb, 2002-06-26
57  friend class SbCondVar;
58  cc_mutex * mutex;
59 };
60 
61 
62 #ifndef COIN_INTERNAL
63 // For TGS Inventor compile-time compatibility.
64 #include <Inventor/threads/SbThreadAutoLock.h>
65 #endif // COIN_INTERNAL
66 
67 #endif // !COIN_SBMUTEX_H
A basic class for managing a mutex.This class provides a portable framework around the mutex interfac...
Definition: SbMutex.h:30
SbBool tryLock(void)
Definition: SbMutex.h:42
int unlock(void)
Definition: SbMutex.h:46
int lock(void)
Definition: SbMutex.h:35
A class for synchronizing access to global variables.Condition variables are used to protect global v...
Definition: SbCondVar.h:32
SbMutex(void)
Definition: SbMutex.h:32
~SbMutex()
Definition: SbMutex.h:33

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